Questions

Please answer all questions


1		Write the chemical symbols for the following chemical elements: Argon Gold Neon Sodium Calcium Tin



2		Boron has two naturally-occurring isotopes, boron-10 and boron-11. Boron-10 has a mass of 10.0129 relative to carbon-12 and makes up 19.78 percent of all naturally-occurring boron. Boron-11 has a mass of 11.00931 compared to carbon-12 and makes up the remaining 80.22 percent. What is the atomic weight of boron?



3		Identify the number of protons, neutrons, and electrons in the following isotopes: ¹⁴₇N ⁷₃Li ³⁵₁₇Cl ⁴⁸₂₀Ca ⁶³₂₉Cu ²³⁰₉₂



4		Identify the period and the family in the periodic table for the following elements: Xenon Potassium Chromium Argon Bromine Barium



5		How many outer shell electrons are found in an atom of: Na P Br I Te Sr



6		Write electron dot notations for the following elements: Aluminum Fluorine Magnesium Sodium Carbon Chlorine



7		Identify the charge on the following ions: Aluminum Chlorine Magnesium Sodium Sulfur Hydrogen



8		Use the periodic table to identify if the following are metals, nonmetals, or semiconductors: Radon Francium Arsenic Phosphorus Hafnium Uranium



9		From their charges, predict the periodic table family number for the following ions: F^-1 Li⁺¹ B⁺³ O^-2 Be⁺² Si^-4



10		Use chemical symbols and numbers to identify the following isotopes: Potassium-39 Neon-22 Tungsten-184 Iodine-127

2002 McGraw-Hill Higher Education
Any use is subject to the Terms of Use and Privacy Policy.
McGraw-Hill Higher Education is one of the many fine businesses of The McGraw-Hill Companies.